Glass-cutting tool.



L. ROTHHOLZ. GLASS CUTTING TOOL.

APPLICATION FILED SEPT.21, [914.

1,161,889. Patented Nov. 30, 1915.

ES PATENT GLASS-CUTTING TOOL.

Specification of Letters Patent.

Patented Nov. 30, 1915.

Application filed September 21, 1914. Serial No. 862,760.

To all whom it may concern Be it'known that I, LOUIS RoTHHoLz, a citizen of the United States, residing at New York, Bronx county, State. of New York, have invented certain new and useful Improvements in Glass-Cutting Tools, of which the following is a full, clear, and exact specification.

This invention relates to tools for cutting glass, and has for one of its pbjects to provide improved means for lubricating the cutting disk, said means being capable of producing a forced feed of the lubricating oil to the disk.

Another object is to provide improved storage facilities for extra cutting disks, whereby said extra disks may be maintained in good condition, and space is economized in making the head of the tool.

A further object is to provide improved means for detachably holding the cutting disk in operative position.

ther objects will become apparentas the description proceeds.

The invention will be first hereinafter described in connection with the accompany= ing drawmgs, which constitute a part of this specification, and then more specifically defined in the claims at the end ofthe description.

In the accompanying drawings, wherein similar reference characters are used to designate corresponding parts throughout the several views: Figure 1 is side elevation of a glass cutting tool constructed in accordance with this invention, the portion of the head of the tool in which the lubricant holding and {extra cutter storage chamber is formed being shown in section. Fig. 2 is a top plan view of the tool. and Fig. 3 is a cross section taken through the axis of the cutting disk, showing howit is detachably mounted on the head of the tool.

The tool may be provided with the usual handle A and head B, the latter having a plurality of notches C formed in its lower,

edge for breaking glass of different thicknesses, as is common. The upper portion of the head B is bored longitudinally to form a chamber D, and the outer end of said upper portion of the head is pointed and bifurcated, as at E to receive the cutting disk F.

The outer end of the chamber D communicates with the bifurcation E, and is fitted with an absorbent pad G which projects into the bifurcation E so as to contact with they cutting edge or periphery of the disk F. The rear end of the chamber 1) is closed by an adjustable plug H which is provided with a socket K in its inner end to receive one end of a rod or shaft L. Said rod or shaft is arranged longitudinally within the chamber D and preferably substantially in the center thereof. A plurality of extra cutting disks F may be mounted on the rod or shaft L and stored in the chamber D, as

illustrated in Fig. 1, in a most convenient manner and without providing a separate storage place which would take up extra space on the head of the tool.

It will be understood that the chamber D may be filled with lubricating oil, as at M in ig. l, and that this oil will be fed through the pad G to the cutting disk F so as to facilitate the cutting operation as will be readily understood.

It will be noted that the adjustability of the plug H permits of a forced feed of the lubricating oil whenever necessary or desired, and that when said plug is screwed in past the point where the inner end of the socket therein engages the end of the rod L, said rod may be moved longitudinally so as to force the pad Gr, outward against the cutting disk for the purpose of taking up the wear on said pad.

One side of the bifurcated end portion of the head is provided with a closed-ended socket N, and the other side of said bifurcated portion has a passage 0 extending en- 'tirely through it and arranged in alinement with said socket N. Said passage and socket are made of a size to receive the axis pin P of the cutting disk F. Said pin is inserted through the passage 0 and extends through the center bore of the cutting disk and into the socket N.

An internally screw-threaded opening or cavity R intersects the passage 0, and a screw S may be turned into said cavity so as to extend across the passage 0' for retaining the pin P in place, as illustrated in Figs.

2 and 3. By means of this construction, the cutting disk may be readily removed and a new one substituted when desired. To accomplish this substitution, it is only necessary to partially remove the screw S until the passage 0 is clear, whereupon the pin P may be knocked out releasing the cutting disk, after which a new disk taken from the chamber D may be inserted in the bifurca tion E and the pin P and screw S returned to normal position. I

Having thus described my invention what I claim as new and desire to secure by Letters Patent of the United States is 1. A glass cutting tool having a lubricant holding chamber, a cutter, apad for feeding the lubricant from the chamber to the cutter, and a rod arranged in said chamber for holding extra cutters.

2. A glass cutting tool having a lubricant holding chamber, a cutter, means for feeding the-lubricant from the chamber to the cutter, a plug having a socket in its inner end, anda rod journaled in the socket inthe plug and arranged in said chamber forholding extra cutters.

i 3. A glass cutting tool having a lubricant holding chamber, a cutter, a pad for'feed-- ing the lubricant from the chamber to the cutter, an adjustable plug .in the end of said chamber and having a socket in its inner end, and a rod journaled in the socket in the plug, said plug having an initial inward movement independent of the rod for forcing the feeding of the lubricant through the pad, and a further movement in connection with said rod to move the pad toward the cutter, for taking up wear.

In testimony whereof I have signed my name to this specification in the presence of two attesting witnesses.

LOUIS ROTHHOLZ. Witnesses:

GEORGE J. LAUB, CHAS. BLOCH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

